Tsubaki's uniform for Spartoi ("sown men") as of chapter 62-3 of the manga, also known as the Shibu-kids Squad. The outfit is simplistic, but more comfortable than the original outfit. I severely modded an cheap cotton t-shirt to fit my body and sewn on white embroidery floss for the stylized stitches, and the skirt was the one for the school uniform. The muff was made from gray interlock knit and has heavy material sewn between the layers so it can stand up better